obama will be in the audience in denver, as the president takes the stage. the celebrations are on hold until saturday. i'm sure she understands. >> i think so. happy anniversary. >> happy anniversary. >>> hey, tucker. >> good morning. >> how are you? >> good. been a nice morning. fog-- >> out of here? >> it's on the way out. see the darker yellow and orange? it's where the fog is thick. to the west of the city, see the frontal system literally draped across the district here? the fog has been springing up along that front all morning long, and heavy here just to the north of the front. as you get west of the city here, out towards leesburg and reston, visibility still 0.25- mile or less. montgomery county and northern maryland, visibility still greatly reduced. washington, still fog to the east, fog as well. things should get better. dense fog advisory continues for mother half hour or so -- another half hour or so. expanded this at about 8:15 this morning to include the washington, d.c. and counties close. earlier it was the mountain communities. many of u